Deeks: This thing?
Kensi: Yes. Our thing.
Deeks: I'm sorry. I didn't -- I didn't hear you because there are so many people walking by. Maybe say it louder. Once more just for me.
Kensi: I hate you.
Deeks: You don't. You don't. You don't hate me.
Kensi: Our thing.
Deeks: Wow. Phew.
Kensi: You have to promise me something too.
Deeks: Anything.
Kensi: Promise you'll be patient with me.
Deeks: See you tonight.
Kensi: Yeah.

If this was Lost, this was the moment that Deeks declared that Kensi was his constant. She got him through the torture and recovery. "Kens, I just want you know that the place that I went to in my head to stop the pain was you. I just kept thinking about your smile, and your laugh. Everything. It's the only thing that got me through. For whatever it's worth."

Deeks didn't come out and declare his love for Kensi, but this was the conversation that changed everything for these partners. Snyder's death allowed their hearts to open just a little.
"You smell like sunshine and gun powder. Two of my favorite things."